Eye protection glass display cover plate, preparation method and display screen

Abstract

The invention discloses an eye-protection glass display cover plate, a preparation method and a display screen, and the preparation method comprises the following steps: cutting white glass, carrying out edging and chemical strengthening treatment to form a glass display cover plate, and cleaning the glass display cover plate; eight optical film layers which are stacked layer by layer and are different in thickness are designed on one side of the cleaned glass display cover plate, the total thickness is 410-550 nm, optical film coating of the glass display cover plate is completed, the transmittance of the coated glass display cover plate is larger than or equal to 94.5%, and the illumination perspective wavelength range is 630-750 nm. The eye-protecting glass display cover plate is prepared by the preparation method. The display screen comprises the eye protection glass display cover plate. The display screen of the eye-protecting glass display cover plate prepared by the invention has a good eye-protecting effect, so that the eyes can see the display screen more clearly and more easily, the eyes are better protected, the naked eye vision is improved, the blood circulation is accelerated, and the vision is healthier.

Description

Technical Field

[0001] This invention belongs to the field of eye-protection glass technology, specifically relating to an eye-protection glass display cover, its preparation method, and a display screen. Background Technology

[0002] Currently available glass display covers and displays mainly serve to protect the display devices from damage caused by excessive external force, but they do not prevent blue light from damaging the eyes and thus protect the eyes. As people spend more time looking at glass display covers and displays, their eyes are prone to visual fatigue and myopia. Moreover, the longer people look at the screen, the higher their myopia will become, failing to truly solve the problem of visual health. Summary of the Invention

[0003] The purpose of this invention is to provide an eye-protecting glass display cover, a manufacturing method, and a display screen to solve the aforementioned problems existing in the prior art.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] On one hand, the present invention provides a method for preparing an eye-protecting glass display cover, comprising the following steps:

[0006] The clear glass is cut to the required size using a glass cutting machine, and the cut clear glass is then edge-ground and chemically strengthened before being screen-printed to form a screen-printed glass display cover, which is then cleaned.

[0007] Eight layers of optical film with varying thicknesses are designed on one side of the cleaned glass display cover, with a total thickness of 410nm-550nm. This completes the optical coating of the glass display cover, resulting in a transmittance of ≥94.5% and a light transmission wavelength range of 630-750nm.

[0008] As a preferred technical solution of the present invention, the eight optical film layers designed on one side of the cleaned glass display cover include:

[0009] The first optical film layer on one side has a thickness of 10nm-30nm and is made of silicon dioxide.

[0010] The second optical film layer on one side has a thickness of 30nm-50nm and is made of silicon nitride.

[0011] The third optical film layer on one side has a thickness of 20nm-40nm and is made of silicon dioxide.

[0012] The fourth optical film layer on one side has a thickness of 115nm-135nm and is made of silicon nitride.

[0013] The fifth optical film layer on one side has a thickness of 190nm-210nm and is made of silicon dioxide.

[0014] The sixth optical film layer on one side has a thickness of 35nm-55nm and is made of silicon nitride.

[0015] The seventh optical film layer on one side has a thickness of 10nm-30nm and is made of silicon dioxide.

[0016] The eighth optical film layer on one side has a thickness of 15nm-30nm and is made of AF layer.

[0017] As a preferred technical solution of the present invention, seven layers of optical film with different thicknesses are designed on the other side of the glass display cover after optical coating on one side, so that the transmittance of the coated glass display cover is ≥96%. The seven optical film layers include:

[0018] The first optical film layer on the other side has a thickness of 10nm-30nm and is made of silicon dioxide;

[0019] The second optical film layer on the other side has a thickness of 30nm-50nm and is made of silicon nitride.

[0020] The third optical film layer on the other side has a thickness of 20nm-40nm and is made of silicon dioxide.

[0021] The fourth optical film layer on the other side has a thickness of 115nm-135nm and is made of silicon nitride.

[0022] The fifth optical film layer on the other side has a thickness of 190nm-210nm and is made of silicon dioxide.

[0023] The sixth optical film layer on the other side has a thickness of 35nm-55nm and is made of silicon nitride.

[0024] The seventh optical film layer on the other side has a thickness of 10nm-30nm and is made of silicon dioxide.

[0025] As a preferred technical solution of the present invention, before optical coating, a vacuum coating method using magnetron sputtering is adopted. The cleaned glass display cover plate is placed on the coating substrate holder of the vacuum coating line and fixed with a plate clamp. Then, the coating substrate holder containing the glass display cover plate is sent into the vacuum coating chamber of the magnetron sputtering vacuum coating line through an automatic transfer device of the vacuum coating line. The coating environment is vacuumed to 2.0*10-5 0 rpm. The outer surface of the glass display cover plate to be coated is first ion cleaned for 3-5 minutes, and then the coating begins.

[0026] On the other hand, the present invention provides an eye-protecting glass display cover, which is prepared by any of the above-described preparation methods.

[0027] In another aspect, the present invention provides a display screen, including the aforementioned eye-protecting glass display cover.

[0028] Beneficial Effects: This invention designs eight layers of optical films of varying thicknesses, stacked sequentially on the outer side of a glass display cover. The resulting glass display cover exhibits a transmittance ≥94.5%, with a light transmission wavelength range of 630-750nm. This coating optimizes the reduction of reflectivity and the transmission rate. Too few or too many film layers will negatively impact the reflectivity and transmittance. The glass display cover and screen, incorporating the absorption of blue light and ultraviolet rays and coated with this optical design, effectively reduce eye strain and minimize the impact on the glass display cover and screen itself. The reflection from the screen surface effectively relieves eye strain and improves the transmittance of the glass cover and the screen itself, making the screen clearer, easier, and more eye-friendly. Simultaneously, the low-energy red light (630-750nm wavelength) emitted from the screen and the glass cover activates retinal cells and triggers photobiological reactions, enhancing the activity of visual cells, increasing vasodilation and thickening of the retinal sclera and choroid, shortening the axial length of the eye, improving uncorrected visual acuity, and accelerating blood circulation, thus promoting better vision. Detailed Implementation

[0029] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the present invention will be briefly introduced below in conjunction with the description of the embodiments or the prior art. Obviously, the following description is only some embodiments of the present invention. The description of these embodiments is used to help understand the present invention, but does not constitute a limitation of the present invention.

[0030] Example:

[0031] This embodiment provides a method for preparing an eye-protecting glass display cover, including the following steps:

[0032] The white glass is cut into the required size by a glass cutting machine, which is the size required by the display screen and other display devices to be used. The cutting can be done according to the actual situation, and there is no specific limit. The cut white glass is then edged and chemically strengthened, and screen-printed to form a screen-printed glass display cover plate, which is then cleaned.

[0033] Before optical coating, a vacuum coating method using magnetron sputtering is employed. The cleaned glass display cover is placed onto the substrate holder of the vacuum coating line and secured with a clip. The substrate holder containing the glass display cover is then fed into the vacuum coating chamber of the magnetron sputtering vacuum coating line via an automatic transfer device. The coating environment is set to a vacuum of 2.0 × 10⁻⁵ TOOR. The outer surface of the glass display cover to be coated is first subjected to ion cleaning for 3-5 minutes to enhance the adhesion of the film layer before coating begins.

[0034] Eight layers of optical film of varying thicknesses, stacked sequentially, are designed on one side of the cleaned glass display cover, with a total thickness of 410nm-550nm. This completes the optical coating of the glass display cover, resulting in a transmittance of ≥94.5% and a light transmission wavelength range of 630-750nm. Specifically, the eight optical film layers designed on one side of the cleaned glass display cover include:

[0035] The first optical film layer on one side has a thickness of 10nm-30nm, such as 10nm, 20nm or 30nm, and is made of silicon dioxide (SiO2). It can increase the adhesion between silicon nitride and the glass display cover and reduce the reflection of light from the panel glass.

[0036] The second optical film layer on one side has a thickness of 30nm-50nm, such as 30nm, 40nm or 50nm, and is made of silicon nitride (SI3N4). It can reduce the surface reflectivity of the glass display cover and improve the transmittance of the glass display cover.

[0037] The third optical film layer on one side has a thickness of 20nm-40nm, such as 20nm, 30nm or 40nm, and is made of silicon dioxide (SiO2). It can increase the adhesion between silicon nitride and the glass display cover and reduce the surface reflection of the glass display cover (reduce the surface reflectivity of the glass display cover).

[0038] The fourth optical film layer on one side has a thickness of 115nm-135nm, such as 115nm, 125nm or 135nm, and is made of silicon nitride (SI3N4). It can reduce the surface reflectivity of the glass display cover and improve the transmittance of the glass display cover.

[0039] The fifth optical film layer on one side has a thickness of 190nm-210nm, such as 190nm, 200nm or 210nm. It is made of silicon dioxide (SiO2) and can increase the adhesion between silicon nitride and the glass display cover, and reduce the surface reflection of the glass display cover (reduce the surface reflectivity of the glass display cover).

[0040] The sixth optical film layer on one side has a thickness of 35nm-55nm, such as 35nm, 45nm or 55nm, and is made of silicon nitride (SI3N4). It can reduce the surface reflectivity of the glass display cover and improve the transmittance of the glass display cover.

[0041] The seventh optical film layer on one side has a thickness of 10nm-30nm, such as 10nm, 20nm or 30nm, and is made of silicon dioxide (SiO2). It can increase the adhesion between silicon nitride and the glass display cover and reduce the surface reflection of the glass display cover (reduce the surface reflectivity of the glass display cover).

[0042] The eighth optical film layer on one side has a thickness of 15nm-30nm, such as 15nm, 22nm or 30nm, and is made of AF layer, which can increase and reduce the oil stain resistance of the glass display cover surface.

[0043] This invention utilizes eight layers of optical films of varying thicknesses stacked sequentially on the outer side of a glass display cover. The resulting coated glass display cover exhibits a transmittance ≥94.5% and a light transmission wavelength range of 630-750nm. This achieves optimal reduction in reflectivity and transmittance after coating. Too few or too many film layers will negatively impact the reflectivity and transmittance. The glass display cover and screen, incorporating this optical design and designed to absorb blue light and ultraviolet rays, effectively reduce eye strain and minimize surface damage. The reflective surface effectively relieves eye strain by reducing glare. It also improves the transmittance of the glass cover and the display screen, making the screen clearer, easier, and more eye-friendly. At the same time, the low-energy red light (630-750nm wavelength) emitted by the display screen and the glass cover stimulates the retinal cells, activates them, and produces a photobiological response. This enhances the activity of visual cells, increases the dilation of blood vessels in the retina, sclera, and choroid, and thickens the vessel walls, shortens the axial length of the eye, improves uncorrected visual acuity, and accelerates blood circulation, resulting in healthier vision.

[0044] As a preferred technical solution of the present invention, seven layers of optical film with different thicknesses are designed on the other side of the glass display cover after optical coating on one side, so that the transmittance of the coated glass display cover is ≥96%. The seven optical film layers include:

[0045] The first optical film layer on the other side has a thickness of 10nm-30nm, such as 10nm, 20nm or 30nm, and is made of silicon dioxide (SiO2). It can increase the adhesion between silicon nitride and the glass display cover and reduce the reflection of light from the panel glass.

[0046] The second optical film layer on the other side has a thickness of 30nm-50nm, such as 30nm, 40nm or 50nm, and is made of silicon nitride (SI3N4). It can reduce the surface reflectivity of the glass display cover and improve the transmittance of the glass display cover.

[0047] The third optical film layer on the other side has a thickness of 20nm-40nm, such as 20nm, 30nm or 40nm, and is made of silicon dioxide (SiO2). It can increase the adhesion between silicon nitride and the glass display cover and reduce the surface reflection of the glass display cover (reduce the surface reflectivity of the glass display cover).

[0048] The fourth optical film layer on the other side has a thickness of 115nm-135nm, such as 115nm, 125nm or 135nm, and is made of silicon nitride (SI3N4). It can reduce the surface reflectivity of the glass display cover and improve the transmittance of the glass display cover.

[0049] The fifth optical film layer on the other side has a thickness of 190nm-210nm, such as 190nm, 200nm or 210nm. It is made of silicon dioxide (SiO2) and can increase the adhesion between silicon nitride and the glass display cover, and reduce the surface reflection of the glass display cover (reduce the surface reflectivity of the glass display cover).

[0050] The sixth optical film layer on the other side has a thickness of 35nm-55nm, such as 35nm, 45nm or 55nm, and is made of silicon nitride (SI3N4). It can reduce the surface reflectivity of the glass display cover and improve the transmittance of the glass display cover.

[0051] The seventh optical film layer on the other side has a thickness of 10nm-30nm, such as 10nm, 20nm or 30nm, and is made of silicon dioxide (SiO2). It can increase the adhesion between silicon nitride and the glass display cover and reduce the surface reflection of the glass display cover (reduce the surface reflectivity of the glass display cover).

[0052] By designing 7 optical film layers on the other side of the glass display cover, the transmittance of this eye-protecting glass display cover can be ≥96%, making the display screen clearer, easier, and more eye-friendly.

[0053] On the other hand, the present invention provides an eye-protecting glass display cover, which is prepared by any of the above-described methods, thereby obtaining an eye-protecting glass display cover. Furthermore, the present invention provides a display screen including the aforementioned eye-protecting glass display cover. Consequently, displays using the eye-protecting glass display cover prepared by the present invention all have excellent eye-protecting effects, making viewing the display screen clearer, easier, and more eye-friendly, improving uncorrected visual acuity and accelerating blood circulation, thus promoting better visual health.

[0054] Finally, it should be noted that the above description is merely a preferred embodiment of the present invention and is not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A method for preparing an eye-protecting glass display cover, characterized in that, Includes the following steps: The clear glass is cut to the required size using a glass cutting machine, and the cut clear glass is then edge-ground and chemically strengthened before being screen-printed to form a screen-printed glass display cover, which is then cleaned. Eight layers of optical film with varying thicknesses are designed on one side of the cleaned glass display cover, with a total thickness of 410nm-550nm. This completes the optical coating of the glass display cover, resulting in a transmittance of ≥94.5% and a light transmission wavelength range of 630-750nm.

2. The preparation method according to claim 1, characterized in that, The eight optical film layers designed on one side of the cleaned glass display cover include: The first optical film layer on one side has a thickness of 10nm-30nm and is made of silicon dioxide. The second optical film layer on one side has a thickness of 30nm-50nm and is made of silicon nitride. The third optical film layer on one side has a thickness of 20nm-40nm and is made of silicon dioxide. The fourth optical film layer on one side has a thickness of 115nm-135nm and is made of silicon nitride. The fifth optical film layer on one side has a thickness of 190nm-210nm and is made of silicon dioxide. The sixth optical film layer on one side has a thickness of 35nm-55nm and is made of silicon nitride. The seventh optical film layer on one side has a thickness of 10nm-30nm and is made of silicon dioxide. The eighth optical film layer on one side has a thickness of 15nm-30nm and is made of AF layer.

3. The preparation method according to claim 2, characterized in that, On one side of the glass display cover after optical coating, seven layers of optical film of varying thicknesses are designed, stacked sequentially, to ensure that the transmittance of the coated glass display cover is ≥96%. The seven optical film layers include: The first optical film layer on the other side has a thickness of 10nm-30nm and is made of silicon dioxide; The second optical film layer on the other side has a thickness of 30nm-50nm and is made of silicon nitride. The third optical film layer on the other side has a thickness of 20nm-40nm and is made of silicon dioxide. The fourth optical film layer on the other side has a thickness of 115nm-135nm and is made of silicon nitride. The fifth optical film layer on the other side has a thickness of 190nm-210nm and is made of silicon dioxide. The sixth optical film layer on the other side has a thickness of 35nm-55nm and is made of silicon nitride. The seventh optical film layer on the other side has a thickness of 10nm-30nm and is made of silicon dioxide.

4. The preparation method according to any one of claims 1-3, characterized in that, Before optical coating, a vacuum coating method using magnetron sputtering is employed. The cleaned glass display cover is placed onto the substrate holder of the vacuum coating line and secured with a clip. The substrate holder containing the glass display cover is then automatically transported into the vacuum coating chamber of the magnetron sputtering line via an automatic transfer device. The coating environment is set to a vacuum of 2.0*10⁻⁶. -5 TOOR first performs an ion cleaning of the outer surface of the glass display cover to be coated for 3-5 minutes, and then begins the coating process.

5. An eye-protecting glass display cover, characterized in that, The eye-protecting glass display cover is prepared by the preparation method described in any one of claims 1-4.

6. A display screen, characterized in that, Includes the eye-protecting glass display cover as described in claim 5.